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Water at 20 degrees Celsius is flowing with velocity of 0.5 m/s between two parallel flat plates placed 1 cm apart. Determine the distances from the entrance at which the velocity and thermal boundary layers meet.
how many electrons in a ground-state atom of manganese have an mt value of -1? A.7 B.5 C.3 D.1
The slope of the Gran Plot for the titration of KHP with NaOH was found to be -1E-05. Use this to determine ka2. Other values that may be of importance: concentration was measured
How do you arrange PV=nRT to give equation relating pressure to concentration and use it to modify Beer's Law to apply to gas pressure? Write a formula that relates absorbance to gas pressure.
What is the phosphoanhydride bond on the NADH structure? Although NADH and ATP both have phosphoanhydride bonds
A solution of cough syrup contains 5.00% active ingredient by volume. If the total volume of the bottle is 70.0 mL, how many milliliters of active ingredient are in the bottle
A titration is performed on 1.3245g of a sample of a diprotic acid that is dissolved in 50 ml of water. if 44.10 ml of .6124 M NaOH is required to reach the end-point, what is the molecular weight of the diprotic acid
Consider the combustion reaction of acetylene (C2H2), H2O(l) is one of the products. Which of the following statements are correct? Choose all that apply.
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.041 M in NH4Cl
If the surface area of a human body is 16,100 square centimeters, what is the total weight of the atmosphere on a human body
What concentration of [Cu2+] is in a 1.0 L solution that is 0.0010 M CuCl2 and 0.10 M NH3. The formation constant of [Cu(NH3)4]2+ = 1.7 x 10^13.
a sample of nitrogen gas is contained in a pistol with a freely moving cylinder. at 0.0 c the volume of the gas is 375
A mixture of CaCO3 and CaO weighing 0.693 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.436 g. Assuming all the CaCO3 broke down to CaO and CO2, calculate the mass percent of CaCO3 in the original mixture.
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